Heating apparatus



Dec. 2, 1930,, Q'W'HSO'MMER 11 3,9

HEATING APPARATUS Original Filed April 10, 1926 :s Sheets-Sheet 1 of direction-on Fig. 1, and from thence said products of combustionpass intoa plurality of'spaced tubes 4, suitably arranged in relation to each other in a'housing 5, formingthe flue chamber. The rfire-brick-wallil of the combustion chamber issurroundedby or encasedjwithin' an insulating brick wall 6, which in turn is encased within a metallic sheathing 7 between which and anouter c lindrical casing 8'is provided a' water jacket 9. Thiswater jacket 9surroundsthe com: bustion chamber 2 substantially throughout" its length and belowthe bottomthereofand terminates in and communicates with a sup-t plemental water jacket 10 which surrounds all but thefront wall of the supplemental chamber 4 and, overlies-thesame in the mannershown in Fig. 1. I, In what isdesignated as thefront wall ofthe supplementalchamher 4 there is provided a gas tight doorll by meansof which access may be hadfto the upper end ofithe boiler, and in particular,

the supplementalchamber k'thereof, after first removing the insulating-wall 11 ,Wi18738- 1; by;'- to provide for ,fthe introduction of suit;

able flue cleaning neans,afor cleaning' the I several} fines ,f 1 These fines, as indicated in Fig. 1, are of'the down-drafttypeand prefera'bl'y extend laterally from-1 the: upper end of. the boiler, horizontally fora Ishort dis tance, and then by an easy'curve' eirtend down v in the leg of the housing 5,;opening at their t lower ends into-a fiue box 12, which may have a suitable; sewer connection for the removal or discharge, ofa-ny water which may condense within said'fiues. ,The housing 5 has preferably a gas tight'cnnection at :5 with the E supplemental i chamber 4110f the boilerl; i

The water jacket 9 of the looiler andthe flue chamberof'the housing?) are connected and 'e have communication with a water conducting pipe or-header 13 extendingytherebetween;

theuniain section of said pipefl3-beingfdetachablyconnected to short sections 13- "and 13", connected, respect1vely,with( the water jacket19 of the boiler and the flue chamber of the housing-5, as bcst'zscen in Fig'. '1,'and

saidsectionglfi is arranged to have connected thereto and communicating thcrewith 'thc main supply;or returnfeed pipe 14, from which extend and to whicharc. connected a pluralityofipipes 15 connected at remote points with preferably radiatorsmiot shown, located in respective rooms ofa idwelling;

The flue box 12is shown connectedto a chimney or a flue 8,'throughand by means of a pipe connection 15,;havingza depending air inlet leg-16 in which may be arranged, for ad ustment, a damper, not shown, which may be seen" any predetermined "position, or so connected" as toy'automatically maintain a definiter.amount .of draft? at all @times, as

will be understood. (The use of 'such a valve, f opened or closed, will'tvdetermine, and regu:

late the draftintlie line 8 not in economical-use of fuel..

' Connected to the upper wall of the supplemental"water jacket 10 of the boiler proper, and in communication-With said chamber, is

'a'pipeconne'ction-l8 and a like connection 19 is shown connected to thehousing 5 adjacent the boiler and in communication with the and result or flue chamber therein, and to said pipe connec-l -tions" '18 aiid 19 and in communication therewith are short legs 18 and 19, which forms apart'ofor are connectedtto a preferably horizontally disposed header or;manifold 20, provided with; a supply line 21 leading to and suitably connected with radiators of the dwelling to which the hot water i'sto be supplied; thus? the circulation of water from the Water jacket 9, and from thence-' through the supplemental chamber 10 and from'the flue chamber of the housing- 5 passes into the header or manifold and 1 out through the supply line ,21 to one'orjmore radiatorsand :frorn thcnce back through the plurality of pipes 15, in communication ,with theheader or apipe 14,fand, from the latter back intolthe-water jacket 9 and the flue cham berlof. the housing I 5, through the connections 18', 13and'13, as will be readily under:

"stood." I v p j z For'c'onvenience in the erection of the heat: er, the boiler 1 and the housing 5 are separate :elemen tsand are adapted to be joined, the upperiportio'n of the housing 5 to and within the supplemental chamber 4: at the iipp'er end of-the boiler, also, through-the a tion chamber ofithe' boiler and forms the burner havingf flame orifices 23, see'F-igs. 2 and6. Said'pipe 22 1s connectedexteriorly ofrtheboiler with an elbow 24;, the major 13.01

tion of which is disposed-verticallyand comprises amixing cha-mberi25 in which is located; a fuel-nozzle or ejector :26, preferably formed integral therewith, and said; fuel-nozzle or ejector and elbo'w constitute sectionsof a chambered casting 27, arranged in c0mmu- 'nication with the lower portioniof the combustion chambe'i Q below the burner, see'Fig.- 2, The casting 27"is formed or provided with-a short vertically disposed'cylinder 28 surroundedbya fuel chamber 29, the upper end of the cylinder being closed'by a cap-- plate 30and the wall of the cylinder is pro- ;vided with a plurality of fuel-feed orifices 31, providing means of communication between the interior of the cylinder 28 and the chamber 29, said last. mentioned. chamber bya suitably arranged duo/c132 being in commui its ' 7 temperature of the room in which the thermostat-44 18 located.

The, thermostat 44'is connected with and intercepts the tuelfee'd'lme '35 at Vafsuitable point inad-vanceoif the therin'ostat 45,:and the l2tl3t6IT,lS..:CO11I16CtQdWltll and -intercepts said fuel feed line-'35 ata 1 point adjacent the header or manifold 20 and is, therefore, located at a suitable-point between thelocation of the thermostat 44 and the air controlling'v'alve 42. At the point where the thermostat 44int'ercepts' the fuel feed line'35 a coupling 46 is provided." An

opening therein, by means ofwhich commur nication is provided between, one section of thefuel feed line to the -other,- is controlled by a suitable valve'47, operable by an inactive part 44 of the thermostat 44, the latter being operable through and by meansof an adjustable screw plate 48 provided with a suitable dial or, gauge 49, see-Fig.1 4. This dial or gauge enables the setting of thevalve 4'? to the temperaturewhich it is desired shall be maintained in theroom of a dwelling-and 7 when this temperature decreases thethermo supply of fuel, even -of small volume, is pass the temperature ofthe water being. tubular stat becomes automatically actuated 'in the usualmanner to open the valve-47 to a greater extent, thereby, permitting a greater volume of-Qfuel to pass'through the fuel feed ing line a'ndthe coupling :46 controlled by said valve 47 This valve is provided'witha small orifice 48 therethrough, so that even though the valve may be closed, a constant ing through the system. The thermostat differs only from the thermostat 44 in its detailedconstruction, the part to be affected by an'dlindicated at 50 and has aninactive part 49 disposed therewithin, the part-'49 being v suitably carried within'theheader or inanifold 20. Such'thermostat is providediwith an adjustable screw 51, the faceplateof which'is provided with a dial orfgauge 52,

see Fig 5, adapted to be set to the temperature of the ,water at which it is desired tobe operated, and said adjustable screw 5l is ar-. ranged to actuate a valve member 52 control lingan opening in acoupling53'which communicates with sections of thejfuel feed line;

3 5 and to which the same are connected,-'as

bestseen in'Fig; 2, and said valve 52 is providedwith an orifice 52 therethrough so that 7 eventhough the valve may be closed a constant supply of fuel, even otsmall volume, is

passing through the system; The shut-off valve designated 54 is preferably located in the fuel-feed line in advance of the coupling whichmay be closed when the, heating apparatus isin non-useand opened again when theboiler is to befired. I I have only briefly described the characteristics of the two thermostats 44'and 45 Ixam not concerned in thespecific, or de- 7 I tailedgconstruotion thereof, as, I realize that "modifications and changes may be made in both of these thermostats and the means for i controlling and'rovperat'ing the :valves 47 and 52, respectively, without departing from the spirit and scope of the inventioniherein, and it is'only necessaryto say that the-part 44 operatively connected with the valve 4710f the thermostat 44 and the part 49in opera+ static control which I provide, one for a prcdetermined room temperature and'one' for a predetermined water temperature, that as a result of the adjustment of the twoin relation tofeach other,I can automatically control the supply of fuel past the piston 36 to the burner, whereby, to maintain a moreconstant temperature of the water'ci'roulating through the hotuwater systems The thermostat 44 is directly affected by less temperature in the room, than'the predetermined setting of such 1' thermostat, and will automatically regulate.

theamount of fuelwhich is let into the syss. em, WVhen the water reaches its maximumtemperature, fixed'bythe predetermined setting of thethermostat 45, the latter acts to retard the flow of fuel through the system -and immedizitelywhen the-temperature of the water isdecreased below the predetermined setting of such thermostat 45iit automatically acts to" allow 'foran increased; volume of fuel passing through the system to 1 the burner and as long as a predetermined temperature may be'maintained inthe dwelling, the'lesserr .lthe amount of fuel permitted to passthe valvelg47' controlled by the thermostat 44;

but should thistemperature reduce, thensaid lastmentiohed thermostat acts to permit a greater volume of fuel tobefed through the system, to beonly checked by thethermostat 45, when the temperature of the water reachesthemaximmn amount-fixed by the setting of the thermostat; 45. Through I this dual, arrangement/it should .be obvious that a maximum temperature may bevery easily nomic use of fuel.

and conveniently maintained with an eco- Irrespective of the temperature regulation or effectiveness of such temperature on the thermostat 44, which is located at aconvenient point in a dwelling, it will be obvious that the resulting action on the thermostat 45 will bedeterminedby the generaltemperature ofrthe boiler water-and may or may not be afliected by what occurs. in the-*area'imnie- Vdiately. adjacent to'the thermostat 44. In Fig: 6a modification is shown instruc- 'tion 136 the nozzle'and also togi zhe boiler beheath the burnerge fuel supply eonnect'edtb the casing, means operable by the pressure of 'the fuel forrcontrolling'the amountof fuel entering the'nozzle, and means operable by said last named means -f0r= regul'ably supply- 7 ingairlto the Conduit.

WILLIAM? SOMMER. H 

